Diuncus justus (Schedl, 1931)

Smith, Sarah M., Beaver, Roger A. & Cognato, Anthony I., 2020, A monograph of the Xyleborini (Coleoptera, Curculionidae, Scolytinae) of the Indochinese Peninsula (except Malaysia) and China, ZooKeys 983, pp. 1-442 : 1

publication ID

https://dx.doi.org/10.3897/zookeys.983.52630

publication LSID

lsid:zoobank.org:pub:7DED4CE2-934C-4539-945F-758930C927F9

persistent identifier

https://treatment.plazi.org/id/C42AFD17-7A4F-26DC-C25C-C7DDAA8F6034

treatment provided by

ZooKeys by Pensoft

scientific name

Diuncus justus (Schedl, 1931)
status

 

Diuncus justus (Schedl, 1931) Fig. 50C, D, J View Figure 50

Xyleborus justus Schedl, 1931: 339.

Diuncus justus (Schedl): Hulcr and Cognato 2009: 32.

Xyleborus marginicollis Schedl, 1936c: 64. Synonymy: Hulcr 2010: 107.

Xyleborus ciliatus Eggers, 1940: 141. Synonymy: Hulcr and Cognato 2013: 81.

Xyleborus apiculatus Schedl, 1942a: 190. Synonymy: Hulcr and Cognato 2013: 81.

Type material.

Holotype Xyleborus justus (NMNH). Holotype Xyleborus marginicollis (NHMW).

New records.

Vietnam: Cao Bang, 22°34.5'N, 105°52.4'E, ~ 1080 m, 14.iv.2014, VN28, Cognato, Smith, Pham, ex Cunninghamia branches (MSUC, 1).

Diagnosis.

1.5-1.7 mm long (mean = 1.65 mm; n = 5); 2.36-2.5 × as long as wide. This species is distinguished by the minute size; unarmed declivity; declivital striae 1 shallowly impressed; nearly glabrous appearance; and lateral margin of the protibiae armed with four denticles.

Similar species.

Diuncus ciliatoformis .

Distribution.

Australia, China (Fujian), Indonesia (Java), East & West Malaysia, New Guinea, Vietnam*.

Host plants.

This species has only been recorded from Cunninghamia ( Cupressaceae ).

Remarks.

The synonymy of Xyleborus apiculatus , X. ciliatus , and X. marginicollis with Diuncus justus needs to be reassessed using information from DNA as well as morphology.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Curculionidae

Genus

Diuncus

Loc

Diuncus justus (Schedl, 1931)

Smith, Sarah M., Beaver, Roger A. & Cognato, Anthony I. 2020
2020
Loc

Xyleborus apiculatus

Schedl 1942
1942
Loc

Xyleborus ciliatus

Eggers 1940
1940
Loc

Xyleborus marginicollis

Schedl 1936
1936
Loc

Xyleborus justus

Schedl 1931
1931